148
Item
Default
Description
Fragmentation
Threshold
2432
This setting determines the size at which packets are
fragmented. Enter a setting ranging from 256 to 2432 bytes.
Use a low setting in areas where communication is poor or
where there is a great deal of radio interference.
Preamble Type
Dynamic
Preamble
The preamble type is a section of data at the head of a packet
that contains information the Wireless Subscriber Gateway
and client devices need when sending and receiving packets.
The setting menu allows you to select a long, short or
dynamic preamble type.
Authentication
Method
Open System
Select open system, shared Key or both.
Open System—
Allows any device to authenticate and then
attempt to communicate with the Wireless Subscriber
Gateway. Using open authentication, any wireless device can
authenticate with the Wireless Subscriber Gateway, but the
device can only communicate if its WEP keys match the
Wireless Subscriber Gateway. Devices not using WEP do not
attempt to authenticate with a Wireless Service Gateway that
is using WEP.
Shared Key—
During shared key authentication, the Wireless
Subscriber Gateway sends an unencrypted challenge text
string to any device attempting to communicate with the
Wireless Subscriber Gateway. The device-requesting
authentication encrypts the challenge text and sends it back
to the Wireless Subscriber Gateway. If the challenge text is
encrypted correctly, the Wireless Subscriber Gateway allows
the requesting device to authenticate. Both the unencrypted
challenge and the encrypted challenge can be monitored,
however, which leaves the Wireless Subscriber Gateway
open to attack from an intruder who calculates the WEP key
by comparing the unencrypted and encrypted text strings.
Because of this weakness, shared key authentication can be
less secure than open authentication.
Both—
With this setting wireless stations can communicate
with or without data encryption.
Click
Apply
button to save the new settings.
Summary of Contents for RA-490
Page 1: ......
Page 2: ...2 RA 490...
Page 37: ...37 Figure 3 20 Example Account Printout...
Page 42: ...42 Figure 3 27 Example Post paid Printout...
Page 59: ...59 3 2 5 RADIUS Authentication Figure 3 45 Authentication Setting Screen...
Page 72: ...72 Figure 3 60 PC connected Printer Printout Time to Finish...
Page 73: ...73 Figure 3 61 Web based Account Generator Printout Accumulation...
Page 77: ...77 Below is an example of the account printout Figure 3 67 Account Printout...
Page 79: ...79 Below is an example of the account printout Figure 3 69 Account Printout...
Page 88: ...88 3 2 9 Keypad Figure 3 79 Keypad Setting Screen...
Page 95: ...95 Network Report Printout Figure 3 91 Network Report Printout Press ABCAB...
Page 102: ...102 Figure 3 102 Logo Setting Screen Figure 3 103 Login Page...
Page 111: ...111 Figure 3 120 Billing Setting Screen...
Page 113: ...113 Figure 3 122 Service Selection Page Setting Screen iValidate net...
Page 114: ...114 Figure 3 123 Service Selection Page Setting Screen Secure Pay...
Page 115: ...115 Figure 3 124 Service Selection Page Authorize net...
Page 116: ...116 Figure 3 125 Service Selection Page iValidate net...
Page 117: ...117 Figure 3 126 Service Selection Page SecurePay...
Page 118: ...118 Successful Page Figure 3 127 Successful Page Setting Screen...
Page 145: ...145 3 2 22 Wireless Figure 3 154 Wireless Setting Screen...
Page 151: ...151 Figure 3 158 System Status Screen...
Page 167: ...167 3 5 2 Glossary of Terms Figure 3 189 Glossaries of Terms...
